Donorstabilisierte Galliumdihalogenide Ga2X4·2D (X = Cl,Br; D = Donormolekül): Ein experimenteller Beitrag zu den Variationsmöglichkeiten der Ga‐Ga‐Einfachbindung |
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Authors: | Taike Duan,Hansgeorg Schn ckel |
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Affiliation: | Taike Duan,Hansgeorg Schnöckel |
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Abstract: | Donor‐stabilized Galliumdihalides Ga2X4·2D (X = Cl, Br; D = Donor): An Experimental Contribution on the Variation of the Gallium‐Gallium Single Bond During the disproportionation of metastable GaX‐solutions (X= Cl, Br) donor‐stabilized galliumdihalides are formed as oxidized products. According to X‐ray structure analyses they all exhibit dimeric entities DX2Ga‐GAX2D (D= THF, NHEt2, NEt3, 4‐tButylpyridin or Br‐), which means these compounds are isoelectronic with ethane and could schematically be regarded as representatives of catenulate or alkane‐like gallium subhalides: Gan(X, D)2n+2. The gallium‐gallium bond in these compounds is shorter than in the organometallic compounds such as R2Ga‐GaR2. The comparison of the bonding situation in the galliumdihalides, particularly of the gallium‐gallium bond, shows clearly the influence by donor molecules as well as by halogen ligands. |
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Keywords: | Gallium‐gallium bond Gallium subhalide Crystal structure |
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